Brake



V. BENDIX Aug. 23, 1932.

BRAKE Original Filed April 27, 1926 INVENTOR. yihceni @ehdipV PatentedAug. 23, 1932 UNITED STATES VINCENT BENDIX, or son'rn BEND, rnnrana,nests-non T50, BJENDII? iii-Midi corr- PA'NY, OF SOU H BEND, mamas;learners,

BRAKE.

Original application filed April 27, 1926, Serial No. 26,036rDividedand; this app1ication' fr1ed June 26;

1930. Serial no. 463,909,

This invention relates to wheel brakes and more particularly tooperating means for swiveled wheel brakes and is a division of myco-pending application Serial No. 26,086, filed April 27th, 1926.

g One object of the invention is to provide a convenient arrangement ofmeans for operating swiveled or steering wheel brakes.

Another object of the invention is to pro- ,vide a brake operatingmechanism that permits the brake cam to be placed nearer the axis ofrotation of the wheel.

Another object of the invention is to provide a brake operatingmechanism involving gears or gear sectors.

Other objects as well as novel and desirable details of constructionwill be apparent from the following description of one illustrativeembodiment of the invention, shown in the accompanying drawlng, 1nwhich:

Figure 1 is a sectional elevationof a portion of a steering wheel andaxle upon which the improved operating mechanism is installed, and aFigure 2 is a fragmental enlarged view taken in the direction of lines22 of Figure 1.

111 the arrangement illustrated, 8 is a wheel spindle forming a part ofknuckle 9, swiveled upon the axle 10 to swivel abouta vertical axis. Abacking plate or support 12 is secured to the knuckle 9 and cooperateswith the rotatable drum 14 to enclose the brake shoes 16 and theoperating mechanism.

' The brake shoes 16 are expanded into contact with the drum 14 by a cam18 having a shaft 20 rotatably supported in a bearing 22, mounted uponthe support or backing plate by means of bracket 23 and bolts 24:. Onthe outer serrated end of shaft 20 is secured a gear sector 26 which isclamped thereon by a bolt 28. The mating serrations of the sector andshaft permit of any desired adjustment and after the correct position ofthe parts has been secured, the sector is tightly locked to the shaft bythe clamp bolt 28.

Immediately above the shaft 20 is mounted a second shaft 32 which issecured to the backing plate 12 by any desired means such as riveting. Agear sector 34 having an arm 36 is $1 which contacts with; a fla't ted Yson ewliat-ingdetail one embodiment of my inhe ppe d d c a m ro a ablyfilhnted, hen h S ft .2, th teeth of the sector 34 being arranged tomatewith, the teeth on sector 26. The arm 36 proje'cts downwardly into aposition approximatel-ycoincident; with theswivelin'g axis of theknuckle and i's-engaged by thQ-lever- 38 mounted upon the axle 10 torotate about a vertical axis 40; a I

Thelever 36 -preferably has a sphericalend portion t2,' i

formed upon. the 'lever28,

In the operation of the mechanism shown, movement of the Lever 42 towardthe r ght as I viewed in Figure 2 rotates the arm 86 and sector 3 1- ina counterclockwise direction, which 2 i rotates the sector 30 and cam 18in the reverse 1 direction to expand the brake shoes 16.

It may be readily seen that in the arii'angen ent shown described, thelever 36 may have a greaterlength than ifit were directly 7 ,connectedto the shaft 20 and that the me- ,chanical advantage between thehorizontal lever 38 and the cam 18 is increased, I

171W hile I have i-ll ustrated and described- 76 vention, it is not my.intention to limit the scope of theinvention to thisparticularembodiment or otherwise than by the terms of Having thusdescribed the features of the invention, what I claim as new and desireto secure by Letters Patent is:

1. Brake mechanism comprising, in combination, retarding means and anadjacent support, a rock shaft arranged to operate the g retarding meansandjournaled in the support, an arm mounted on said support and curvedaround said shaft and pivoted for movement about an axis outside of andadjacent the rock shaft, interengaging parts one of which is mounted onthe rock shaft, and the other of which is operated by the arm,

and means for rocking the arm to operate said retarding means.

2. Brake mechanism comprising, in combis5 nation, a support, retardingmeans adjacent rock shaft, a rock arm mounted on the sup lflo port andcurved around the shaft and having adjacent one end a part engaging saidoperating part on the rock shaft, and means adj acent the other end ofthe arm'for rocking the arm to operate said retarding means.

3. A brake comprising, in combination, retarding means and an adjacentsupport, a

rock shaft ournaled in the support and hav-U ing a member provided-withteeth secured at its end, an operating arm mounted on the support andmovable about an aXis outside of and adjacent the rock shaft, and a parthaving' teeth meshing with the teeth of the part on therock shaft andarranged to be operated by swinging the arm, the shaft being arrangedsubstantially in line with and between the ends of said arm. V

4. Brake mechanism comprising, in combination, retarding means and anadjacent support, a rock shaft projecting through the support arrangedto operate the retarding means and journaled in the support, an armpivoted for movement in a plane adjacent and parallel to the supportabout an axis outside of and adjacent the rock shaft and curved aboutthe shaft with its ends substantially in line with the shaft,inter-engaging parts one of which is mounted on the rock shaft and theother of which is operated by the arm, and means for rocking the arm tooperate said retarding means. I

5. Brake mechanism comprlsing, retarding '1 means and an adjacentsupport, a rock shaft arranged to operate the retarding means,

said shaft being journaled onthe support,

gear means on the shaft, a second gear means j ournaled on the supportin meshed relation to the first gear means, an'arm secured to the secondgear means projecting toward the first gear means,and means formovingthe arm to operatethe retarding means.

In testimony whereof, I

have hereunto signed my name. i

VINCENT BENDIX; Y

